mrjt Messages: 705 Registered: March 2007 Location: London
Contributor
It's diffcult to tell without seeing more source, but there is a common reasons for this error.
Have you included <Draw/iml.h> in the header file? You should rather use <Draw/iml_header.h> in the header, and <Draw/iml_source.h> in ONE source file (with the same #define IMAGECLASS). See CtrlCore for an example of this.